【摘要】 在3种氮气浓度(78.8%、83.0%、88.0%)、3种相对湿度(69.6%RH、75.1%RH、83.7%RH)及5种温度(19.9、25.0、29.3、34.7、39.8℃)组合条件下,研究了锈赤扁谷盗卵的孵化情况。结果表明:发育历期为2.2~18.9 d,发育起点温度为13.8~14.3℃,最高临界发育温度为40.4~43.0℃,有效积温为61.6~115.6日度。发育历期、发育速率与温度之间分别是"指数"型及"S"型曲线关系。氮气及温度、湿度因素相互作用影响了卵的孵化,88.0%的氮气对孵化有显著的抑制效应,温度(>30.0℃)及湿度(>69.6%RH)强化了氮气对孵化的抑制效应。更多还原

【Abstract】 Egg eclosion of Cryptolestes ferrugineus( Stephens) was investigated under the combined conditions of nitrogen concentrations( 78. 8%,83. 0% and 88. 0%),relative humidity( 69. 6% RH,75. 1% RH,83. 7% RH)and temperatures( 19. 9,25. 0,29. 3,34. 7,39. 8 ℃). The results showed that the development period,the development zero,the maximum development temperature and the effective accumulated temperature were 2. 2 ~ 18. 9 d,13. 8~ 14. 3 ℃,40. 4 ~ 43. 0 ℃ and 61. 6 ~ 115. 6 day-degree,respectively. The curves between the development period,development rate and the temperatures were respective ‘index’and ‘S’-shaped pattern. It was concluded that the interaction of nitrogen,temperature and humidity would affect egg eclosion; 88% nitrogen had significant inhibitory effects on the eclosion; Temperature( > 30. 0 ℃) and humidity( > 69. 6% RH) enhanced the inhibitory effect of nitrogen on egg eclosion.更多还原